Back to articles
Articles
Volume: 11 | Article ID: art00009
Image
Biological Gain Control for High Dynamic Range Compression
  DOI :  10.2352/CIC.2003.11.1.art00009  Published OnlineJanuary 2003
Abstract

The visual system has the ability to see and obtain detailed information from a highly dynamic range of a scene. For example, a person can observe items in one range by observing the inside of a dim room as well as outside through a window. An algorithm for high dynamic range compression that can be applied for still and video images is presented. This algorithm is based on a biological model that is also suggested for wide dynamic range and lightness constancy. It succeeded in automatically compressing the dynamic range of images to a ‘human vision appearance’ (as is commonly required in cameras and displays) while maintaining and even improving contrast. The biological basis is expressed as retinal mechanisms of adaptation (gain control), both ‘local’, and ‘remote’, that enable also video image applications by taking into account the dynamics of human adaptation mechanisms. The results indicate the significant and robust contribution of adaptation mechanisms in image appearance, and have been found appropriate for next generation High dynamic range cameras (CMOS based).

Subject Areas :
Views 2
Downloads 0
 articleview.views 2
 articleview.downloads 0
  Cite this article 

Hedva Spitzer, Yan Karasik, Shmuel Einav, "Biological Gain Control for High Dynamic Range Compressionin Proc. IS&T 11th Color and Imaging Conf.,  2003,  pp 42 - 50,  https://doi.org/10.2352/CIC.2003.11.1.art00009

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2003
72010350
Color and Imaging Conference
color imaging conf
2166-9635
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA